As a trader, you're bound to make mistakes that are very likely to cost you your fortunes but that I don't think should discourage you rather it should afford you the experience to overcome future mistakes. Firstly you need to own your mistakes by acknowledging them, embrace your losses as tuition to learning more about crypto trading, define your trading plans, then try and improve your risk management. Taking this simple steps I think will help you overcome trading mistakes as well as reducing your chances of future mistakes